Safety air bag for automobile zero-gravity seat and automobile seat

Abstract

The invention discloses a safety air bag for an automobile zero-gravity seat and an automobile seat, and relates to the field of automobile parts, the safety air bag comprises an air bag assembly used for being matched with the top of a seat assembly, the air bag assembly comprises an integrated air bag main body, the air bag main body is connected with a generator, the generator is used for inflating the air bag main body during collision, and the generator is connected with the air bag main body. And the air bag main body is unfolded to form a semi-enclosed structure. According to the invention, the air bag main body can be unfolded to form a semi-enclosed structure, so that the front and side surfaces of a passenger can be protected in all directions in a zero-gravity state; meanwhile, the air bag assembly and the seat assembly are integrated, and dynamic protection on the human body can be achieved.

Description

Technical Field

[0001] The present invention relates to the field of automotive parts, and particularly to an airbag and an automotive seat for a zero-gravity seat in a vehicle. Background Art

[0002] The statements herein only provide background art related to the present invention and do not necessarily constitute prior art.

[0003] Conventional driver's airbags and passenger airbags are usually installed inside the steering wheel and the instrument panel, and quickly inflate and deploy during a frontal collision of the vehicle to provide buffer protection for the heads and chests of the front-row occupants. There is also an increased protection for personnel by arranging side curtain airbags. The side curtain airbags are mostly located on the sides of the seat backrests and play a role during a side collision or rollover accident of the vehicle to protect parts such as the heads, chests, and pelvises of the occupants. However, in the zero-gravity state, the occupant's body is nearly lying flat, and the positions and postures of parts such as the head, shoulders, back, and legs change significantly. Conventional airbags cannot provide sufficient protection and are likely to cause greater harm.

[0004] For example, a prior art discloses an airbag system that sets side curtain airbags at the vehicle side beam position. After the side curtain airbags are deployed, they have multiple protection areas, and one of the protection areas corresponds to the head position of the occupant in the zero-gravity state to achieve protection for the personnel in the zero-gravity state; this method can only protect the head of the personnel and cannot achieve all-round protection of the human body. Another prior art also discloses an airbag installed on the backrest frame, which realizes the protection of different positions of the personnel by setting multiple inflatable bags; for the zero-gravity state, gas needs to enter multiple inflatable areas to form a buffer cavity, and the inflation uniformity cannot be guaranteed, affecting the protection effect; moreover, this solution can protect the head and both sides of the chest, but cannot effectively protect the position in front of and below the chest. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an airbag and an automotive seat for a zero-gravity seat in a vehicle, which can make the airbag main body deploy into a semi-surrounding structure to provide all-round front and side protection for the occupant in the zero-gravity state; at the same time, the airbag assembly is integrated with the seat assembly to achieve dynamic protection of the human body.

[0006] To achieve the above purpose, the present invention is implemented by the following technical solutions:

[0007] In a first aspect, an embodiment of the present invention provides an airbag for a zero-gravity seat in a vehicle, including an airbag assembly for mating with the top of the seat assembly. The airbag assembly includes an integral airbag main body, and the airbag main body is connected to a generator. The generator is used to inflate the airbag main body during a collision, so that the airbag main body unfolds to form a semi-surrounding structure.

[0008] As a further implementation manner, the airbag assembly is cooperated with the seat assembly through a guiding structure, and the guiding structure is used for guiding the unfolding direction of the airbag.

[0009] As a further implementation manner, the airbag body is in a semi-spherical structure with an opening facing downward in the unfolded state.

[0010] As a further implementation manner, the guiding structure includes a head guiding bracket, a first side guiding bracket and a second side guiding bracket. The head guiding bracket is fixed to the top of the seat assembly, and the first side guiding bracket and the second side guiding bracket are symmetrically arranged on both sides of the head guiding bracket.

[0011] As a further implementation manner, the airbag body is a symmetric structure with respect to the axis of the seat assembly.

[0012] As a further implementation manner, the airbag body is provided with a shunt air guiding cavity.

[0013] As a further implementation manner, the airbag body is provided with a plurality of lugs for connecting the seat assembly, and the airbag body is provided with a generator hanging point.

[0014] As a further implementation manner, a generator is connected to each end of the airbag body.

[0015] In a second aspect, an embodiment of the present invention further provides an automotive seat, including a seat assembly, and the above-mentioned airbag is mounted on the top of the seat assembly.

[0016] As a further implementation manner, the seat assembly is provided with a plurality of airbag assembly fixing points.

[0017] The beneficial effects of the present invention are as follows:

[0018] (1) The airbag body of the present invention is an integral structure, and under the action of the generator, it can be unfolded to form a uniform semi-surrounding structure, which wraps the human head and chest entirely, realizing full protection for the occupant from the front and side in the zero-gravity state and ensuring riding safety.

[0019] (2) The airbag main body of the present invention has a symmetrical structure, and generators are connected to both ends thereof, capable of supplying gas from both ends, enabling the two sides of the airbag main body to expand synchronously, forming a uniform covering state, and reducing the response time of the airbag main body to expand; meanwhile, a guiding structure is installed on the airbag main body. When the airbag main body expands, due to the blocking and guiding effects of the guiding structure on the airbag main body, the airbag main body expands forward, and finally a stable semi-surrounding structure is formed. Moreover, the airbag main body expands into a state similar to a hemisphere with uniform distribution, which can increase the protection range for the human body; the airbag main body is also provided with a flow-dividing air guiding cavity, which can guide the gas to different positions of the airbag body in a predetermined direction, and can improve the expansion speed and effect of the airbag main body.

[0020] (3) Ear pieces are provided at the rear side of the airbag main body of the present invention, and the ear pieces are connected to the fixing points on the seat assembly; a generator hanging point is also provided at a lower position near the rear side of the airbag main body. The generator hanging point is used to hang the generator to keep the generator stable, so as to be able to stabilize the expansion state of the airbag main body. Description of the Drawings

[0021] The specification drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0022] Figure 1 is an assembly drawing of the airbag assembly and the seat assembly according to one or more embodiments of the present invention;

[0023] Figure 2 is an exploded view of the airbag assembly according to one or more embodiments of the present invention;

[0024] Figure 3 is a schematic diagram of the expanded state of the airbag assembly according to one or more embodiments of the present invention;

[0025] Figure 4 is a schematic structural diagram of the airbag assembly according to one or more embodiments of the present invention.

[0026] Among them, 1. Seat assembly, 2. First seat bracket, 3. Second seat bracket, 4. First side guiding bracket, 5. Airbag assembly, 6. Second side guiding bracket, 7. First fixing point, 8. Second fixing point, 9. Head guiding bracket, 10. First generator, 11. Second generator, 12. First airbag bracket, 13. Second airbag bracket, 14. First fixing clamp, 15. Second fixing clamp, 16. Third fixing clamp, 17. Fourth fixing clamp, 18. First hook, 19. Second hook, 20. Outer ring sewing thread, 21. Airbag main body, 22. Ear piece, 23. Flow-dividing air guiding cavity, 24. Generator hanging point. Detailed Embodiments

[0027] It should be noted that the following detailed description is illustrative and aims to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0028] For the convenience of description, in the present invention, if the words "upper", "lower", "left", and "right" appear, they only indicate the same directions as the upper, lower, left, and right of the accompanying drawings themselves, and do not limit the structure. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. "In the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] Glossary: The zero-gravity seat is an automotive seat design that combines ergonomics and zero-gravity technology, capable of simulating the weightless environment in space and bringing an unprecedented comfortable experience to the occupants.

[0030] Embodiment 1:

[0031] During the driving of a traditional vehicle, when the seat is adjusted to the one-key zero-gravity state, in the event of a traffic accident, the traditional airbag cannot provide sufficient front and side protection for the occupants in the zero-seat state; increasing the side curtain airbag, side airbag, etc. cannot cover the protection requirements of the occupants in the zero-gravity state either.

[0032] Based on this, this embodiment provides an airbag for an automotive zero-gravity seat. Refer to Figure 1 and Figure 3 , which includes an airbag assembly 5. The airbag assembly 5 is installed on the top of the seat assembly 1 and can move with the seat to achieve dynamic protection; the airbag assembly 5 includes an airbag body 21 and a generator. The airbag body 21 is an integral structure. The generator inflates the airbag body 21 during a collision, causing the airbag body 21 to expand to form a semi-surrounding structure. The covering range of the airbag body 21 extends below the chest, which can expand the protection range for the human body.

[0033] Refer to Figure 1 and Figure 2, the airbag assembly 5 is a symmetric structure with respect to the vertical axis of the seat assembly 1. The symmetrically arranged airbag assemblies 5 can ensure the uniformity of the deployment of the airbag body 21 and achieve protection in all directions for the human body. Specifically, the airbag assembly 5 includes an airbag body 21, a generator, an airbag bracket, etc. The outer shape of the airbag body 21 is adapted to the top of the seat assembly 1, and it extends from one side to the other side of the top of the seat assembly 1 to form a symmetric structure. The generator is used to inflate the airbag body 21 within milliseconds, and the airbag body 21 is used to accommodate the high-pressure gas generated by the generator, causing the airbag body 21 to expand and deploy, assisting in energy absorption during a collision and reducing harm to the human body.

[0034] In this embodiment, both ends of the airbag body 21 are connected to the generators, which can supply gas from both ends and reduce the response time of the expansion of the airbag body 21. For ease of description, the generator connected to one end of the airbag body 21 is the first generator 10, and the generator at the other end is the second generator 11. The first generator 10 and the second generator 11 simultaneously inflate the airbag body 21, causing the two sides of the airbag body 21 to deploy synchronously to form a uniform covering state.

[0035] The first fixing clamp 14 connects the first generator 10, the first airbag bracket 12, and the airbag body 21 together, and the second fixing clamp 15 connects the second generator 11, the second airbag bracket 13, and the airbag body 21 together. The first airbag bracket 12 and the second airbag bracket 13 are used to connect to the seat assembly 1. Among them, the first airbag bracket 12 and the second airbag bracket 13 are arranged corresponding to the generator installation channels. Therefore, for the airbag assembly 5, its two sides near the top are connected to the corresponding fixed points of the seat assembly 1 through lugs 22, and its position near the end is connected to the seat assembly 1 through the airbag brackets, enabling the entire airbag assembly 5 to form an effective connection with the seat assembly 1, ensuring connection stability and preventing the airbag body 21 from shaking during deployment and affecting its deployment state.

[0036] The airbag body 21 of this embodiment is an integral structure, and installation channels for the generators are formed at both ends of the airbag body 21. The integral structure can not only ensure the synchronous deployment of both sides of the airbag body 21 but also simplify the manufacturing process of the airbag body 21. When the installation channels of the generators are assembled with the seat assembly 1, they correspond to both sides of the seat assembly 1 and are arranged in the vertical direction. Refer to Figure 1 , the ends of the installation channels extend to the middle position of the seat assembly 1, and the top ends (the connection ends with the airbag body 21) of the installation channels correspond to the corners of the backrest of the seat assembly 1, which can ensure a large coverage range after the airbag body 21 is deployed.

[0037] After the generator inflates the airbag body 21, the airbag body 21 has a tendency to expand backward. In order to guide the unfolded state of the airbag body 21 and form a covering state on the front side of the seat assembly 1, the airbag assembly 5 of this embodiment is provided with a guiding structure. Refer to Figure 1 , the guiding structure includes a head guiding bracket 9, a first side guiding bracket 4 and a second side guiding bracket 6. The head guiding bracket 9 is fixed to the top of the seat assembly 1. The first side guiding bracket 4 and the second side guiding bracket 6 are symmetrically arranged on both sides of the head guiding bracket 9. The head guiding bracket 9, the first side guiding bracket 4 and the second side guiding bracket 6 are all arranged at the rear side of the airbag body 21.

[0038] Among them, the bottom end of the head guiding bracket 9 is fixed to the seat assembly 1. The top end size of the head guiding bracket 9 is larger than the bottom end size, which can ensure an effective connection with the seat assembly 1 while ensuring a large contact surface with the airbag body 21. The first side guiding bracket 4 and the second side guiding bracket 6 are both inclined, and their inclination angles are adapted to the inclined surfaces on both sides of the seat assembly 1. When the airbag body 21 expands, due to the blocking effect of the guiding structure on the airbag body 21, the airbag body 21 expands forward, and finally forms Figure 3 the unfolded state shown.

[0039] Since both ends of the airbag body 21 are connected to the generator, combined with the guiding structure, the generators at both ends cause the airbag body 21 to expand towards the top and both sides during a collision. The unfolded airbag body 21 forms a structure similar to a hemispherical shape on the top of the seat assembly 1. Refer to Figure 3 , the opening of the unfolded airbag body 21 faces downward, wrapping the human head and chest, and can extend below the human chest to form a large protection area. It should be noted that the structure similar to a hemispherical shape in this embodiment means that the unfolded shape can be hemispherical or larger than hemispherical.

[0040] The airbag assembly 5 of this embodiment is formed by sewing. Refer to Figure 4 , the airbag body 21 has an outer ring sewing line. Ear tabs 22 are provided at the rear side of the airbag body 21. The ear tabs 22 are connected to the fixing points on the seat assembly 1. Fixing points are provided on both the left and right sides of the seat assembly 1, that is, the first fixing point 7 and the second fixing point 8. Therefore, two ear tabs 22 are correspondingly provided on the airbag body 21. A generator hanging point 24 is also provided at a lower position near the rear side of the airbag body 21. The generator hanging point 24 is used to hang the generator to keep the generator stable, so as to be able to stabilize the unfolded state of the airbag body 21.

[0041] Refer to Figure 4 , the airbag body 21 is also provided with a flow-dividing air guiding cavity 23. The flow-dividing air guiding cavity 23 can guide the gas to different positions of the airbag body in a predetermined direction to achieve uniform filling, avoid gas concentration in one place, and can improve the unfolding speed and effect of the airbag body 21.

[0042] In this embodiment, an airbag assembly 1 is designed for a zero-gravity seat, and the structure of the airbag assembly 1 is optimized to make it more suitable for protecting the human body in the zero-gravity state. The airbag of this embodiment can be integrated with the seat assembly 1 to achieve follow-up with the seat assembly 1 and realize dynamic protection of the human body; and through the integral airbag body 21, it forms a uniform deployment state.

[0043] In addition, the airbag body 21 is of a symmetrical structure. Cooperating with the generators at both ends thereof, it can enable the gas to enter the airbag body 21 evenly, so that the airbag body 21 can be deployed quickly and evenly. After the airbag body 21 is deployed, it forms a semi-surrounding structure with the opening facing, which can cover from the rear side of the seat assembly 1 over the head and side parts to below the chest position, forming an overall wrap of the human head and chest, increasing the coverage range of the human body and increasing the protection area during a collision.

[0044] Since this embodiment fully wraps the human body in the head and chest, increasing the deployment area of the airbag body 21, in order to enable the large-area airbag body 21 to be effectively deployed, this embodiment installs a generator at each end of the airbag body 21, and at the same time sets a guiding structure and a connecting structure to ensure the stability of the deployment process of the airbag body 21.

[0045] Embodiment 2:

[0046] This embodiment provides an automotive seat, including a seat assembly 1. Refer to Figure 1 , the safety airbag described in Embodiment 1 is installed on the top of the seat assembly 1. A first fixing point 7 and a second fixing point 8 are arranged at a position close to the top of the seat assembly 1, and are connected to the corresponding lugs 22 of the airbag assembly 5 through the first fixing point 7 and the second fixing point 8.

[0047] In this embodiment, a first hook 18 is provided at the first fixing point 7, and a second hook 19 is provided at the second fixing point 8. The first hook 18 and the second hook 19 are hung on the lugs 22 of the airbag assembly 5 to realize the connection between the airbag assembly 5 and the seat assembly 1. A first seat bracket 2 is arranged on one side of the backrest of the seat assembly 1, and a second seat bracket 3 is arranged on the other side. The first airbag bracket 12 of the airbag assembly 5 is fixed to the first seat bracket 2, and the second airbag bracket 13 is fixed to the second seat bracket 3, for example, by bolt connection.

[0048] Refer to Figure 1 , the installation of the airbag assembly 5 on the top of the seat assembly 1 forms a symmetrical structure. This symmetrical manner can ensure that the airbag body 21 is deployed to form a uniform wrapping cavity to effectively protect the human body in multiple directions. And, the airbag assembly 5 is convenient for realizing the disassembly and assembly with the seat assembly 1.

[0049] The seat assembly 1 is also provided with a skin foam and a guide cloth, which are used to accommodate the airbag assembly 5, play a certain protective role for the airbag assembly 5, and can cooperate with the guiding structure to assist in controlling the deployment direction of the airbag.

[0050] The vehicle seat in this embodiment is a zero-gravity seat, which is designed based on ergonomic principles to ensure that the occupant can be evenly supported in various postures; the seat assembly 1 has a sponge foam surface that provides a comfortable touch when in direct contact with the human body, further enhancing the riding comfort. The zero-gravity seat is configured with a large recline angle design, allowing passengers to lie semi-reclined or even fully reclined in the vehicle, enjoying a more spacious riding space; since the airbag assembly 5 is integrated at the top of the seat assembly 1, it can protect the key positions of the human head, chest, etc. during a collision even in the case of a large recline angle.

[0051] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. An airbag for a zero-gravity seat of an automobile, characterized in that, It includes an airbag assembly for mating with the top of the seat assembly. The airbag assembly includes an integral airbag body, and the airbag body is connected to a generator. The generator is used to inflate the airbag body during a collision so that the airbag body unfolds to form a semi-surrounding structure.

2. The airbag for a zero-gravity seat of an automobile according to claim 1, characterized in that, The airbag assembly is mated with the seat assembly through a guiding structure, and the guiding structure is used to guide the unfolding direction of the airbag.

3. The airbag for a zero-gravity seat of an automobile according to claim 1 or 2, characterized in that, The airbag body is in a semi-spherical structure with an opening facing downwards in the unfolded state.

4. The airbag for a zero-gravity seat of an automobile according to claim 2, wherein, The guiding structure includes a head guiding bracket, a first side guiding bracket, and a second side guiding bracket. The head guiding bracket is fixed to the top of the seat assembly, and the first side guiding bracket and the second side guiding bracket are symmetrically arranged on both sides of the head guiding bracket.

5. The airbag for a zero-gravity seat of an automobile according to claim 1, characterized in that, The airbag body is a symmetric structure with respect to the axis of the seat assembly.

6. The airbag for a zero-gravity seat of an automobile according to claim 1 or 5, characterized in that, The airbag body is provided with a flow-dividing air guiding cavity.

7. The airbag for a zero-gravity seat of an automobile according to claim 6, wherein, The airbag body is provided with a plurality of lugs for connecting the seat assembly, and the airbag body is provided with a generator hanging point.

8. The airbag for a zero-gravity seat of an automobile according to claim 1, wherein Two generators are respectively connected to both ends of the airbag body.

9. An automotive seat, characterized in that, It includes a seat assembly, and the top of the seat assembly is installed with a safety airbag as described in any one of claims 1-8.

10. A vehicle seat according to claim 9, characterized in that, The seat assembly is provided with a plurality of airbag assembly fixing points.

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